Eastern Time (EST) is 4 hours behind UK time (BST).

Here is every hour of the day in EST and the same moment in BST.

The green rows are the hours when both zones are inside 9 AM to 5 PM. The row marked Now is the hour it is in Eastern Time right now.

A team split between ET and UK is at work together for 4 hours a day.

Taking 9 AM to 5 PM on each clock as the working day, both zones are at work from 9:00 AM to 1:00 PM EST (1:00 PM to 5:00 PM BST).

A team spread across two time zones has fewer chances to notice someone drifting away. TeamPredict reads public LinkedIn signals to flag resignation risk early, wherever people work.

The gap between EST and BST moves between 4 hours and 5 hours during the year.

The United States and Europe change their clocks on different Sundays, so for a few weeks in spring and a week in autumn the gap is an hour different from the rest of the year.

These are the clock changes of both zones in 2026 and 2027.

EST stands for Eastern Time and BST for UK time on this page.

Eastern Time is EST (UTC−5) in winter and EDT (UTC−4) in summer. People write EST all year, and this page does too; the clock reads EDT right now. It moves its clocks forward at 2:00 AM on the second Sunday in March and back at 2:00 AM on the first Sunday in November.

UK time is GMT (UTC+0) in winter and BST (UTC+1) in summer, and this page follows London all year. The clock reads GMT right now. The UK moves its clocks forward on the last Sunday in March and back on the last Sunday in October.

These nearby time zone pairs show the time right now too.

• BST to EST
• EST to PST
• EST to CST
• EST to MST
• EST to IST
• EST to GMT
• EST to UTC

The time zone converter reads one moment on up to 12 clocks, the military time converter turns 24-hour times into AM and PM, and the time duration calculator measures the hours between two moments.